Find mass percent of calcium carbonate in original mixture
A mixture of CaCO3 and CaO weighing 0.711 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.432 g. Assuming all the CaCO3 broke down to CaO and CO2, calculate the mass percent of CaCO3 in the original mixture.
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Calculate the actual van't hoft factor for this mixture. About how much of the HNO2 is dissociated and explain how you know this, based on the calculated value of i.
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After heating, the remaining solid weighed 0.432 g. Assuming all the CaCO3 broke down to CaO and CO2, calculate the mass percent of CaCO3 in the original mixture.
The coordinates of (x,y) of each point on thecircle above satisfy the x2 + y2 = 25. Line l is tangent to the circle at a point A. If the x coordinate of point Ais -4, what is the slope of line l? the coordinates of the radiusof the circle is (5,0).
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A solution is prepared by dissolving 2.86 grams of sodium chloride, 3.9 grams of ammonium sulfate, and 0.896 grams of potassium iodide in 246 grams of water. Calculate the total mass of the solution
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